Date of Publication :8th June 2024

Abstract: The need for sustainable treatment methods is evident with the increasing wastewater volume generated and more stringent environmental regulations. Deploying ionic liquids in wastewater treatment processes can be both promising and challenging. Many studies have shown that these solvents can effectively remove pollutants such as dyes, metal ions, and pharmaceutical organic compounds. However, identifying the necessary properties in engineering calculations can be rigorous and time-consuming. Two known estimation methods of parameters, such as density, are the equations of state (EOS) and generalized correlations. Ten ionic liquids with proven capability in treating specific wastewater contaminants were selected in this study, but only two were successfully predicted by Schmidt and Wenzel (SW) EOS: [OMIM]BF4 and [BMIM]BF4. Results showed that obtaining design parameters and properties through linearized generalized estimation method is more accessible, especially if time and costs are of the utmost consideration. Moreover, SW EOS can successfully predict density with better accuracy, and the generalized correlation method can still predict with acceptable accuracy and lesser computational effort.

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